I'm truly sorry for the oversight.

Meaning

Expressing regret for a mistake or omission.

Examples

• John: 'I apologize for missing the deadline.'<br>
• Alice: '<b>I'm truly sorry for the oversight</b>; it won't happen again.'
• John: 'It's okay, but <b>I'm truly sorry for the oversight</b>.'
• Alice: 'I forgot to send you the documents.'<br>